For biotechnology production processes with ion trap for long-term stable reference
Application
Hygienic and sterile applications (sterilizable, autoclavable)
- Bioreactor/fermenter
- Biotechnology
- Pharmaceutical industry
- Foods
With ATEX/IECEx, FM, CSA, NEPSI, FDA and USP approval for use in hazardous
areas.
Your benefits
- Biocompatibility with regard to cytotoxicity and bioreactivity has been tested successfully
- Documentation to certify compliance with requirements of pharmaceutical industry with serial number of sensor (optional)
- Durable inscription on shaft, verified as non-cytotoxic
- Suitable for CIP/SIP cleaning, autoclavable, up to 140 °C (284 °F) depending on version
- Pressurized reference, specially for fermentation processes
- Integrated pressure indicator
- Long-term stable reference with ion trap, resulting in a very long service life, bridging electrolyte free of silver ions
- No change in color of gel
- Ceramic diaphragm
- Integrated temperature sensor for effective temperature compensation
- No materials derived from animals were used in the manufacture of parts in contact with the process media
Other advantages of Memosens technology
- Maximum process safety thanks to non-contact, inductive signal transmission
- Data security thanks to digital data transmission
- Very easy to use as sensor data saved in the sensor
- Recording of sensor load data in the sensor enables predictive maintenance with the Memobase Plus CYZ71D
Measuring principle
pH measurement
The pH value is used as a unit of measurement for the acidity or alkalinity of a liquid medium. The
membrane glass of the electrode delivers an electrochemical potential that depends on the pH value
of the medium. This potential is generated by the selective penetration of H + ions through the outer
layer of the membrane. An electrochemical boundary layer with an electric potential forms at this
point. An integrated Ag/AgCl reference system serves as the required reference electrode.
The transmitter converts the measured voltage into the corresponding pH value using the Nernst
equation.
Measuring system
A complete measuring system consists of the following components at least:
- pH electrode CPS171D
- Transmitter, e.g. Liquiline M CM42, CM44x/R
- Memosens data cable CYK10
- Assembly, e.g. Unifit CPA442